This example demonstrates the use of the previous packet. It draws a triangle, annotating its points and sides with names. Note that the coordinates of a, b and c should be chosen to fit the screen of the particular computer (see A.7).
The resulting picture looks like:
(315,160) (010,010)(1,0)140 (150,010)(0,1)140 (010,010)(1,1)140 (010,010)A (150,010)B (150,150)C (080,010) (150,080) (080,080)